Tech & Science Hayabusa2 Spacecraft Captures First Close-Up Image Of Ryugu Asteroid

03:51  10 august  2018
03:51  10 august  2018 Source:   gizmodo.com.au

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Japanese Spacecraft Hayabusa 2 Snaps Incredible Close - Up Image of Asteroid Ryugu . How the Hell Did This Asteroid Get All the Way Out Past Neptune?

Earlier today, Japan’s Hayabusa 2 spacecraft came tantalizingly close toRyugu, offering an unprecedented view of the asteroid ’s boulder-strewn surface. Two weeks ago, Hayabusa 2 came to within six kilometers (3.7 miles) of Ryugu , but today’s descent, the

a close up of a dirty door© Image: JAXA, Tokyo University, Kochi University, Rikkyo University, Nagoya University, Chiba Institu...

Yesterday, Japan’s Hayabusa2 spacecraft came tantalisingly close to Ryugu, offering an unprecedented view of the asteroid’s boulder-strewn surface.

Two weeks ago, Hayabusa2 came to within 6km of Ryugu, but yesterday's descent, the third of the mission, saw Hayabusa2 come to within 851m of the asteroid, making it the closest encounter to date.

Mission planners are preparing for a procedure that will see Hayabusa2 collect samples of rock and dust from Ryugu’s surface. Yesterday's descent was done to measure the weak gravitational pull exerted by the kilometre-wide asteroid.

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i.dailymail.co.uk/i/newpix/20 " height="357" width="634" alt="The very first close - up view of a dice-shaped asteroid dubbed Ryugu was snapped 175 million miles (280 million km) from Earth.

Japan’s Hayabusa 2 probe closes in on asteroid Ryugu – and captures close - ups . Hayabusa 2 follows up on the first Hayabusa probe, which made a similar cosmic trek to collect samples from the asteroid Itokawa in 2005.

  Hayabusa2 Spacecraft Captures First Close-Up Image Of Ryugu Asteroid © Image: JAXA, Tokyo University, Kochi University, Rikkyo University, Nagoya University, Chiba Institu...

The latest descent began August 6 around 11:00AM Japan time, when Hayabusa2 was about 20km away from Ryugu. At around 8:30PM the same day, the probe began to free fall towards the asteroid upon reaching an altitude of 6km. Hayabusa2 got to within 851m of the asteroid around 8:10AM yesterday, at which point it engaged its thrusters to move away from the rock again.

  Hayabusa2 Spacecraft Captures First Close-Up Image Of Ryugu Asteroid © Image: JAXA, Tokyo University, Kochi University, Rikkyo University, Nagoya University, Chiba Institu...

During the descent, Hayabusa2 snapped photos with its telephoto optical navigation camera (ONC-T) and its wide-angle optical navigation camera (ONC-W). The 10m scale bar at the bottom of the photos provide the needed perspective. What looks like a few rocks strewn across the surface are actually large boulders.

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Earlier today, Japan’s Hayabusa 2 spacecraft came tantalizingly close toRyugu, offering an unprecedented view of the asteroid ’s boulder-strewn surface. Two weeks ago, Hayabusa 2 came to within six kilometers (3.7 miles) of Ryugu , but today’s descent, the

Japanese Spacecraft Takes Close - Up Images of Target Asteroid . Several images from Ryugu show the surface of this space rock, which occasionally crosses the orbit of Earth, as it dipped down toward the asteroid .

  Hayabusa2 Spacecraft Captures First Close-Up Image Of Ryugu Asteroid © Image: JAXA, Tokyo University, Kochi University, Rikkyo University, Nagoya University, Chiba Institu...

During the gravity measurement operation, JAXA scientists carefully monitored the movement of the spacecraft as it made its free fall and rise, observing the strength of the asteroid’s gravity on the probe.

JAXA still has to decide where it wants the probe to extract its surface samples, and where to deploy the additional tiny surface probes. This should happen in a couple of months, with the probe hopefully returning to Earth with its samples in late 2020.

But as these new photos show, Ryugu’s surface is complex and treacherous. Choosing an ideal landing site won’t be easy.

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